Screen unit



FIG. 1 is a rear perspective view of the screen unit, showing the control handle side, and shown in a partially folded and partially expanded position, and shown with a joined set of lower louvers opened to admit light and air;

FIG. 2 is a front perspective view thereof;

FIG. 3 is an enlarged partial rear view of one of the panels, shown separately for clarity of illustration, and shown with the bottom section of louvers partially open;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a right side view of FIG. 3;

FIG. 6 is a left side view of FIG. 3, but shown with the bottom louvers closed;

FIG. 7 is a top view of FIG. 1; and,

FIG. 8 is a bottom view of FIG. 1. 

The ornamental design for a screen unit, as shown and described. 